2026 Reading Challenge

Join the Goodreads Author Program

Are you Dong-yeop Cha, author of the books below?
Blessing of the Rainbow by Dong-yeop Cha Rainbow principles by Dong-yeop Cha


To join the author program as Dong-yeop Cha, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


About the Author Program
Authors on Goodreads
Author Guidelines
Author Program How-To
Author & Advertisers Blog
Ask the Author: Featured Authors
About Goodreads